The Calvin Cycle

Part A

Carbon fixation involves the addition of carbon dioxide to _____.

	NADPH
	3-PGA
	Rubisco
	RuBP
	G3P

Correct

In the Calvin cycle, carbon dioxide is added to RuBP.

Part B

After 3-PGA is phosphorylated, it is reduced by _____.

	NADPH
	ATP
	CO2
	ADP
	NADP+

Correct

NADPH supplies the electrons that reduce the phosphorylated 3-PGA.

Part C

How many carbon dioxide molecules must be added to RuBP to make a single molecule of glucose?

	2
	4
	10
	6
	8

Correct

Six carbon dioxide molecules are required to produce two G3P molecules, which can be combined to make one glucose molecule.

Part D

In the Calvin cycle, how many ATP molecules are required to regenerate RuBP from five G3P molecules?

	4
	2
	1
	3
	5

Correct

Correct.